The Sunix SER6437A is a professional 2 port RS232 PCI Express serial expansion card designed to add reliable serial communication to desktop PCs and industrial systems. Featuring the SUN2212 16C950 compatible chipset, 128 byte hardware FIFO, 128 KB software FIFO, and 15 KV ESD protection, it delivers dependable performance for commercial and industrial applications. Buy online today for quick delivery in South Africa.
Sunix SER6437A 2 Port RS232 PCI Express Serial Card
The Sunix SER6437A provides two independent RS232 serial ports through a PCI Express x1 interface while remaining compatible with PCI Express x2, x4, x8 and x16 slots. Built around the reliable SUN2212 chipset with a 16C950 compatible UART, it offers stable communication for legacy and industrial serial devices.
Designed for commercial, industrial and embedded environments, the card supports data rates up to 115.2 Kbps and includes advanced FIFO buffering, automatic flow control and comprehensive ESD protection. It is suitable for connecting barcode scanners, POS equipment, PLCs, CNC machines, laboratory instruments, networking equipment and other RS232 devices.
Performance tier: Professional Industrial
Uses: Industrial automation, POS systems, barcode scanners, PLC communication, CNC equipment, laboratory instruments, serial device expansion, embedded systems
SUNIX SER6437A, PCI Express serial communication boards meet the PCI Express Base Specification Revision 2.0. It is compatible with PCI Express x1, x2, x4, x8 and x16 lane Bus allowing it to be installed in virtually any PC system. The majorities of today's motherboards is not equipped with serial ports or only have one serial port. With SUNIX PCI Express serial board, users can add 2 serial ports to their system, allowing them to use serial devices further. SUNIX SER6437A card has 128-bytes onboard FIFO buffer. It is designed with SUNIX UART controller, SUN2212 PuLao and as well built with many of SUNIX advanced features and technologies, making it the best solution for commercial and industrial automation applications.
The Sunix SER6437A is a PCI Express serial communication card developed for users who require dependable RS232 connectivity on modern computer systems. It adds two independent DB9 serial ports using a single lane PCI Express interface while maintaining compatibility with larger PCI Express slots.
The integrated SUN2212 controller features a 16C950 compatible UART architecture with a 128 byte hardware FIFO and 128 KB software FIFO to improve communication efficiency and reduce processor overhead during continuous serial data transfers. Automatic flow control helps prevent data loss during demanding applications.
Built for industrial reliability, the card includes 15 KV ESD protection together with IEC1000-4-2 air gap and contact discharge protection to safeguard connected equipment. It is suitable for factory automation, production equipment, retail systems, instrumentation, communications equipment and legacy serial peripherals.
The Sunix SER6437A combines dependable hardware with broad operating system compatibility for professional serial communication applications.
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Specifications and features | |
| Product Code | AC-Si6437A |
| General | |
| Interface | RS-232 |
| Controller | SUNIX SUN2212 PuLao |
| BUS | PCI Express Spec 2.0, Single-Lane (x1) |
| IRQ & IO | Assigned by System |
| Serial Communication | |
| Interface | RS-232 |
| No. of Port | 2-port |
| FIFO | 128byte Hardware |
| Signal | DCD, TxD, RxD, RTS, CTS, DTR, DSR, GND, RI |
| Baud rate | 50bps ~ 115.2Kbps |
| Stop bit | 1, 1.5, 2 |
| Parity | even, odd, none, mark, space |
| Flow Control | None, Xon/Xoff, RTS/CTS |
| ESD Protection | ±15KV Human Body Model (HBM) |
| ±15KV Air Gap Discharge | |
| ±8KV Contact Discharge | |
| PCB Connector | DB9 Male |
| Driver Support | |
| Windows Client | XP / Vista / 7 / 8.x / 10 (X86/X64) / 11 |
| Windows Server | 2003 / 2008 / 2012 / 2016 / 2019 / 2022 (X64) |
| Windows Embedded | XP Embedded / POSReady 2009 / POSReady / Embedded System 2009 |
| Linux | Linux 2.x / 3.x / 4.x / 5.x / 6.x |
| DOS | DOS |
| *UNIX | FreeBSD / QNX / SCO OpenServer / SCO UnixWare / Solaris |
| *IBM OS/2 | WARP 3/WARP 4 |
| "*" marked as a project supported operating system. Please contact us if you have any further need. | |
| Regulatory Approvals | |
| Hardware | CE, FCC, VCCI, BSMI |
| Software | Microsoft WHQL Windows |
| Microsoft Client: XP / Vista / 7 / 8.x / 10 /11 (X86/X64) | |
| Microsoft Server: 2003 / 2008 / 2012 / 2016 / 2019 / 2022 (X64) | |
| Environment | |
| Operation Temperature | 0 to 60degreesC (32 to 140degreesF) |
| Operation Humidity | 5 to 95% RH |
| Storage Temperature | -20 to 85degreesC (-4 to 185degreesF) |
| Dimension | |
| PCB Dimension | 65 x 88 mm |
| Bracket | Standard 121 mm |
| Bracket Space | 1 |
The Sunix SER6437A expands a desktop computer with two additional RS232 serial ports using a PCI Express slot. It is commonly used with industrial equipment, POS systems, PLCs, barcode scanners, laboratory equipment and legacy serial devices.
Yes. The card uses a PCI Express x1 interface and is compatible with PCI Express x1, x2, x4, x8 and x16 slots.
The card supports multiple operating systems. Supported platforms include Microsoft Windows, Linux and DOS with official driver support.
Yes. It features 15 KV ESD protection together with 15 KV IEC1000-4-2 Air Gap Discharge and 8 KV IEC1000-4-2 Contact Discharge protection for improved reliability.
Yes. The reliable SUN2212 controller, FIFO buffering and robust protection make it suitable for industrial automation and commercial serial communication applications.
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